package v3.chapter1.t17;

public class Run {

	public static void main(String[] args) {
		MyThread t=new MyThread(); 
		t.start();

	}

}

class MyThread extends Thread{

	@Override
	public void run() {
		long beginTime=System.currentTimeMillis();
		int count=0;
		for(int i=0;i<50000000;i++) {
			// Thread.yield();
			count=count+(i+1);
		}
		long endTime=System.currentTimeMillis();
		System.out.println("用时："+(endTime-beginTime)+"毫秒！");
	}
	
}